Home / 20,973.03-31,459.50-14,379.21

Finding the Fourth Proportional to 20,973.03, 31,459.50 and 14,379.21

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Solution

The fourth proportional to 20,973.03, 31,459.50 and 14,379.21 is: 21,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.03 : 31,459.50 = 14,379.21 : x
  2. Step 2: Convert to fraction form
    20,973.03/31,459.50 = 14,379.21/x
  3. Step 3: Cross multiply
    20,973.03x = 31,459.50 × 14,379.21
  4. Step 4: Simplify right side
    20,973.03x = 452,362,757.00
  5. Step 5: Solve for x
    x = 452,362,757.00/20,973.03
  6. Step 6: Final answer
    x = 21,568.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.